I'm having a hard time deciding between the 17-50 (non VC) and the 28-75 both from Tamron. The reason I'm on the fence is reviews seem to favor the 17-50 for sharpness but I also know that a lot of 28-75 folks have been more satisified after sending the lens in for a tune up, often immediately after purchasing. That being said, do I need to be afraid of the "soft corners" often spoken of on the 28-75, or has this been corrected over time? This is really the main thing causing me to shy away from the 28-75.
Both similar prices so I know its going to come down to sharpness / color for me.
I own a Canon T1i and right now my only lenses are the Nifty 50 and the kit lens. I also use the EX580-II for indoors. I like the sharpness of the nifty 50 and the f/1.8 ability for use indoors, but find that 50mm is a bit too narrow at times. My current likes for the kit lens are the ability to capture wider angles indoors with the kit lens, but hate that its not very fast. I do often miss being able to zoom beyond 55mm though when outdoors.
I would ideally like to replace both lenses with one, if possible, at the individual cost range of these Tammy's (~$450), but may wind up keeping the nify 50.
My subjects tend to be rather well rounded:
-Main subject is my 2 year old son, my dog, etc... lots of the pictures are indoors with the EX580-II attached.
-The other pictures I will take are occasional outdoors of general scenery (not mountains or anything, I'm in the NW burbs of Chicago LOL).
-Finally, I am an automotive hobbyist, so I'm often at the drag strip or car shows taking pictures so I need a crisp fast lens with some zoom ability.
Hope this gives enough info to help me decide. I'm leaning towards the 28-75.